>Huawei has contributed to rkt in multiple ways, both with a container registry and by providing ARM support.

It looks like it already supports a bunch of different ARM targets[0].

[0]: https://github.com/appc/spec/blob/3972f6a1b657f38e30100d2a7e...

We aren't actively testing against it yet (although plan to in future), but have heard reports from the community that it works fine: https://github.com/coreos/rkt/pull/1766#issuecomment-1578394...

I have CoreOS building rkt stage0 for ARM64, but have just done minimal runtime testing so far. It is on my todo list to do more work with it to get full ARM64 support. Contributions welcome! https://github.com/glevand/coreos--coreos-overlay/tree/maste...